From: Fernan Bolando <fernanbolando@mailc.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: [9fans] when to use vac -q -d old.vac instead of simply vac -d old.vac
Date: Mon, 29 Jun 2009 09:13:09 +0800 [thread overview]
Message-ID: <1d5d51400906281813g649a72f7v8610b0311c7de5f@mail.gmail.com> (raw)
Hi
The p9p vac discussion made me re-think the way I use vac.
man vac
"-q Increase the performance of the -a or -d options by detecting
unchanged files based on a
match of the files name and other meta data, rather than
examining the contents of the files"
Why is -q not a default? Is there a reliability concern with that option?
I am currently doing an hourly backup using
vac -d old_date-time.vac -f new_date-time.vac /home
which gives me a collection files with a date-time.vac filename.
I am thinking I should just use vac -a main.vac /home
to switch to this method I only need to rename latest date-time.vac to main.vac
and delete the other ones, right?
fernan
--
http://www.fernski.com
next reply other threads:[~2009-06-29 1:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-29 1:13 Fernan Bolando [this message]
2009-06-29 5:02 ` Nathaniel W Filardo
2009-06-29 12:23 ` [9fans] when to use vac -q -d old.vac instead of simply vac -dold.vac erik quanstrom
2009-06-29 15:56 ` [9fans] when to use vac -q -d old.vac instead of simply vac -d old.vac Russ Cox
2009-07-02 1:54 ` Nathaniel W Filardo
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